diff --git a/CFwarp.sh b/CFwarp.sh
index 1f3e9e7..8297e1a 100644
--- a/CFwarp.sh
+++ b/CFwarp.sh
@@ -1047,7 +1047,7 @@ ud4ud6='sed -i "7 s/^/PostUp = ip -4 rule add from $(ip route get 162.159.192.1
 c1="sed -i '/0\.0\.0\.0\/0/d' /etc/wireguard/wgcf.conf"
 c2="sed -i '/\:\:\/0/d' /etc/wireguard/wgcf.conf"
 c3="sed -i 's/engage.cloudflareclient.com/162.159.193.10/g' /etc/wireguard/wgcf.conf"
-c4="sed -i 's/engage.cloudflareclient.com/2606:4700:d0::a29f:c001/g' /etc/wireguard/wgcf.conf"
+c4="sed -i 's/engage.cloudflareclient.com/[2606:4700:d0::a29f:c001]/g' /etc/wireguard/wgcf.conf"
 c5="sed -i 's/1.1.1.1/8.8.8.8,2001:4860:4860::8888/g' /etc/wireguard/wgcf.conf"
 c6="sed -i 's/1.1.1.1/2001:4860:4860::8888,8.8.8.8/g' /etc/wireguard/wgcf.conf"